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chaosblack
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For which value of x...horizontal Tangent Line
For which value of x does f(x) = [tex]\frac{k}{ax^{2}+bx+c}[/tex] have a horizontal tangent line?
Quotient Rule?
F'(x) = [g(x)a'(x) - a(x)g'(x)]/g(x)^2?
Am I supposed to just sub it into a quotient rule format, making the derivative equal to 0?
So it would look like
0 = 0 - (2ax + b)/[[ax[tex]^{2}[/tex]+bx+c][tex]^{2}[/tex]]? (and then simplify of course?)
Homework Statement
For which value of x does f(x) = [tex]\frac{k}{ax^{2}+bx+c}[/tex] have a horizontal tangent line?
Homework Equations
Quotient Rule?
F'(x) = [g(x)a'(x) - a(x)g'(x)]/g(x)^2?
The Attempt at a Solution
Am I supposed to just sub it into a quotient rule format, making the derivative equal to 0?
So it would look like
0 = 0 - (2ax + b)/[[ax[tex]^{2}[/tex]+bx+c][tex]^{2}[/tex]]? (and then simplify of course?)
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